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i <br /> �k J <br /> COLUMBIA ANALYTICAL SERVICES, INCjY <br /> Analytical Report . <br /> 1� Client EMCON Associates Date Received 06/11/93 <br /> Project EMCON Project No OG71-038 01 Service Request No SJ93-0776 <br /> ARCO Facility No 2168 Sample Matrix Water <br /> I <br /> BTEX and TPN as Gasoline <br /> EPA Methods 5030/8020lCalrfornia DHS LUFT Method <br /> ,ug/L (ppb) <br /> I <br /> I Sample Name MW-4 MW-5 (55) Method Blank <br /> Date Analyzed 06/17/93 06/17/93 06/17/93 <br /> Analyte MRL <br /> Benzene 0 5 9,100 6,400 ND <br /> Toluene 0 5 17,000 4,100 ND <br /> Ethylbenzene 0 5 2,700 870 ND <br /> Total Xylenes 0 5 13,000 3,800 ND <br /> TPM as Gasoline 50 110,000 37,000 ND <br /> i <br /> i <br /> Approved by li[y ! lfi Date :,DL Z <br /> 5 <br />